Removing default widget padding logic. Also widget padding it applied
at ShortcutAndWidgetContainer so that the widgetView always has the
correct size.
Bug: 274826296
Bug: 257589413
Test: Verified using screenshots
Flags: N/A
Change-Id: Id4b5e94db6ec7b2aa3dca87b1e9ccc831b608cac
The grid doesn't have a constant space between cells anymore, so we need
new attributes for the different spaces in different situations.
Bug: 191879424
Test: checking cell size and extra space in dumpsys
Change-Id: I4b6aae5b3fea281490c00cd13d0cd3a25372f21b